Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 282 · 40 sums

The method (Grow it every year): Year by year: new amount = amount × (100 + R) ÷ 100. Amount after T years = P × (1 + R/100)ᵀ; compound interest = amount − P. A value falling by R% each year: × (100 − R) ÷ 100 every year. For 2 years, CI − SI = P × R × R ÷ 10000.

1. 1.Find the compound interest on ₹60000 at 8% per year for 2 years, compounded every year (in ₹).
2. 2.Find the compound interest on ₹9000 at 20% per year for 3 years, compounded every year (in ₹).
3. 3.What amount will ₹23700 grow to in 1 year at 4% per year compound interest (in ₹)?
4. 4.A town has 56000 people. The population grows by 5% every year. What will the population be after 3 years?
5. 5.What amount will ₹5400 grow to in 1 year at 4% per year compound interest (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹43100 at 10% per year for 2 years (in ₹)?
7. 7.What is the difference between the compound interest and the simple interest on ₹28900 at 10% per year for 2 years (in ₹)?
8. 8.Find the compound interest on ₹8800 at 25% per year for 2 years, compounded every year (in ₹).
9. 9.A town has 24000 people. The population grows by 5% every year. What will the population be after 3 years?
10. 10.Find the compound interest on ₹46400 at 20% per year for 2 years, compounded every year (in ₹).
11. 11.Find the compound interest on ₹55800 at 20% per year for 2 years, compounded every year (in ₹).
12. 12.Find the compound interest on ₹54900 at 10% per year for 2 years, compounded every year (in ₹).
13. 13.A town has 49300 people. The population grows by 20% every year. What will the population be after 2 years?
14. 14.What amount will ₹16000 grow to in 3 years at 5% per year compound interest (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹17500 at 4% per year for 2 years (in ₹)?
16. 16.Find the compound interest on ₹44400 at 5% per year for 2 years, compounded every year (in ₹).
17. 17.What is the difference between the compound interest and the simple interest on ₹28800 at 25% per year for 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹25200 at 25% per year for 2 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹34000 at 25% per year for 2 years (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹60000 at 12% per year for 2 years (in ₹)?
21. 21.What is the difference between the compound interest and the simple interest on ₹52400 at 15% per year for 2 years (in ₹)?
22. 22.What amount will ₹32300 grow to in 1 year at 15% per year compound interest (in ₹)?
23. 23.What is the difference between the compound interest and the simple interest on ₹9800 at 20% per year for 2 years (in ₹)?
24. 24.Find the compound interest on ₹32500 at 5% per year for 1 year, compounded every year (in ₹).
25. 25.Find the compound interest on ₹7500 at 4% per year for 2 years, compounded every year (in ₹).
26. 26.What amount will ₹39700 grow to in 1 year at 15% per year compound interest (in ₹)?
27. 27.What amount will ₹55000 grow to in 3 years at 10% per year compound interest (in ₹)?
28. 28.Find the compound interest on ₹17000 at 20% per year for 3 years, compounded every year (in ₹).
29. 29.What amount will ₹20500 grow to in 1 year at 10% per year compound interest (in ₹)?
30. 30.A scooter is worth ₹59000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
31. 31.What amount will ₹14000 grow to in 3 years at 20% per year compound interest (in ₹)?
32. 32.A town has 20000 people. The population grows by 12% every year. What will the population be after 2 years?
33. 33.A scooter is worth ₹56000. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
34. 34.Find the compound interest on ₹24000 at 15% per year for 3 years, compounded every year (in ₹).
35. 35.What amount will ₹7000 grow to in 2 years at 10% per year compound interest (in ₹)?
36. 36.What is the difference between the compound interest and the simple interest on ₹50000 at 5% per year for 2 years (in ₹)?
37. 37.What amount will ₹55000 grow to in 2 years at 8% per year compound interest (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹15000 at 12% per year for 2 years (in ₹)?
39. 39.What amount will ₹31600 grow to in 2 years at 15% per year compound interest (in ₹)?
40. 40.What is the difference between the compound interest and the simple interest on ₹53600 at 25% per year for 2 years (in ₹)?

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